Thermotherapeutic appliance



A. BLUME. THERMOTHERAPEUTIC APPLIANCE. APPLICATION FILED IAN. I6, I9I9.

1,355,382. Patented 0@I.12,1920.

Afm/INEI,

A and the like,

is provided with then laid on the asbestos ToI @ZZ 'whom it may concer/n.'

UNITED siuxiazs iiirisiwr OFFICE.

AARON BLUME, .or NEW YORK, N. Y.

Application filed- January 16, 1919. Serial No.

Be it known that I, AARON'BLUME, a citizen of the United States, residing at New York city, in the county of New. York and State of New York, have invented certain new and useful Improvements in Thermotherapeutic Appliances, of which thelfol-N' lowing is aspecification.

y invention relates to thermo-therapeutic appliances primarily designed -to apply heat to the human foot inthe treatment of\y rheumatism, rheumatic aections, gout, arthritis, in the production of hyperemia, and it is my object to produce an appliance which will, apply a uniform heat striking throughout all parts of lthe foot equally, in which the heat is at all times under the control of the operator and which an outer, rigid protecting case.I

In the drawing Figure l is a view of the complete appliance; Fig. 2 a view, partly in section, of the heatin element ,and Fig. 3 an exaggerated sectional View oit the' laminations making up the heating element.

The appliance comprises a base or shoe l preferably made of. felt. On this a layer of asbestos fabric 2 and a layer of asbestos sheet 3 are secured. The electric resistance heating wire 4.- for heating the appliance is layer as shown in Fig. 3 and covers all parts of the foot, including the sole and back 'of the heel. A layer of asbestos cement 5 is neXt laid. over the heating wire so it is completely em, bedded therein. Another layer of asbestos fabric 6 is secured over the asbestos embedded wire and a final outer covering of canvas 7 is secured to the whole.

s 'asbestos is a non-conductor of electric- `ity and the heating wire is completely yem- The terminals of the wire are led out at 4 and may be connected with any suitable supply of electricity. i The upper 8 of the heating shoe is of the usual lace type. j

' A thermometer'Q is embedded in the asbestos layers over the instep and in' practice registers to 340 F.

THIERIVIOTHE RAPEIIT C `APPLIAN CE.

Specicaton of Letters Patent.

' asbestos holding the Aconductor embedded therein and a Patented oet. 12, 1920.

To protect the operative portion of the appliance from accidental damage ali/couter,

is provided. This has a detachable sole 1l and a top l2 provided with 13 and 14 at the instep and The canvas top of the shoe proper is preferably higher than wthe prevent burning the patient through Contact with the hot metal of the case. has an openiug l5 to expose the thermometer and openings 16 and 17 through which the lead wires pass. Y l

The sole of the case may be removed and the heating element or shoe proper placed inside with the thermometer exposed and the lead wires passing out the side opening after which the sole may be replacedv I ,The foot of the patient is incased in cotton, which maybe suitably medicated if desired, and the current is turned` on heating the appliance to any desired degree, the heat for a considerable period of timel andy transmitting it to the foot, eX anding the -blood vessels and stimulating t e circulation. f'

The case l l. A thermo-therapeutic appliancelcoinprising a shoe of electrically non-conductive material, an electrical heating resistance rigid, outer protecting case inclosing the shoe.

2. A thermo-therapeutic appliance com-5 85 .prising a'slioe of electrically non-conductive material, an electrical resistance heating conductor embedded therein, a thermometer embeded in the shoe adjacent to the Cong ductor and out of i with,- and a rigid outer protecting case inclosing the shoe provided withan aperture to expose the thermometer.

3. A thermo-therapeutic appliance -comv prising'a shoe of electrically non-conductive material, an electrical resistance heating conductor embedded therein, and a rigid, outer protecting case inclosing said shoe the sole of said case being detachable to permit inserting 4and removing the shoe.

' 4. A thermo-therapeutic appliance comprising a shoe of electrically nonconductive material, an electrical yheating resistance conductor embedded therein, an outer case physical contact there 90 rigidlyV inclosing the shoe and open at the 65 A therm-.therapeutic appliance com ankle front, and Wings hinged to said case prsing a rigid outer case, and electric heat- 10 to cover. said ankle pening'. ing resistance therein, and a support'for the 5. A thermo-therapeutic appliance comfoot Within said casing whereby the heat is 5 prising a shee of suitable\material, an elecapplied to the entire -foot of ithepatient.

trical resistance heating conductor between n testimony whereof I have affixed my laminatons and embedded'in electrical insignature. v

l AARON BLUME'.y

sulating material. 

